Sediment prokaryote communities in different sites of eutrophic Lake Taihu and their interactions with environmental factors

Chen, Nan; Yang, Jin; Qu, Jiang Hang; Li, Hai Feng; Liu, Wei Jie; Li, Bao Zhen; Wang, En Tao; Yuan, Hong Li

doi:10.1007/s11274-015-1842-1

Cited by 44 publications

(37 citation statements)

References 72 publications

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“…As shown by the cluster analysis, the sediment samples (except for GS2‐2) distributed in Figure a are closely grouped compared to the samples distributed in Figure b. This grouping means that the microbial community structure of alpine lake sediments in different locations also has spatial heterogeneity, which is consistent with previous reports (Bai et al., ; Chen et al., ; Dai et al., ; Song, Li, Du, Wang, & Dinget al, ). This spatial heterogeneity may be related to scale; spatial distance plays an important role in the formation of microbial community composition differences in the range of 10–1,000 km (Martiny, Eisen, Penn, Allison, & Horner‐Devine, ; Martiny et al., ).…”

Section: Resultssupporting

confidence: 88%

“…As shown by the cluster analysis, the sediment samples (except for GS2-2) distributed in Figure 1a are closely grouped compared to the samples distributed in Figure 1b. This grouping means that the microbial community structure of alpine lake sediments in different locations also has spatial heterogeneity, which is consistent with previous reports (Bai et al, 2012;Chen et al, 2015;Dai et al, 2015;Song, Li, Du, Wang, & Dinget al, 2015). This spatial heteroge-…”

Section: Comparison Of Microbial Community Structure Among Sedimentsupporting

confidence: 92%

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Microbial community composition in alpine lake sediments from the Hengduan Mountains

et al. 2019

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Microbial communities in sediments play an important role in alpine lake ecosystems. However, the microbial diversity and community composition of alpine lake sediments from the Hengduan Mountains remain largely unknown. Therefore, based on the Illumina MiSeq platform, high‐throughput sequencing analysis of the 16S rRNA gene was performed on 15 alpine lake sediments collected at different locations in the Hengduan Mountains. The abundance‐based coverage estimate (ACE), Chao1, and Shannon indices indicated that the microbial abundance and diversity of these sediments were high. There are some differences in the composition of microbial communities among sediments. However, in general, Proteobacteria accounted for the largest proportion of all sediments (22.3%–67.6%) and was the dominant phylum. Followed by Bacteroidetes, Acidobacteria, Chloroflexi, and Planctomycetes. In addition, the operational taxonomic unit (OTU) interactions network had modular structures and suggested more cooperation than competition in the microbial community. Besides, we also found that temperature has a significant contribution to the sample–environment relationship. This study revealed the diversity and composition of microbial communities in alpine lake sediments from the Hengduan Mountains, and describe the correlation between microbial community structure and different environmental variables.

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Section: Resultssupporting

confidence: 88%

Section: Comparison Of Microbial Community Structure Among Sedimentsupporting

confidence: 92%

Microbial community composition in alpine lake sediments from the Hengduan Mountains

et al. 2019

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“…This result is very similar to the recent pyrosequencing analysis of Lake Taihu which identified Proteobacteria, Actinobacteria, and Bacteroidetes as the dominant groups (21). Also, the composition of the sediment samples was consistent with the previous investigation (22). The main genera in the sediments are clearly different from those found in the water column, which documents that our samples are representative for the selected environments and that they are free of any potential cross-contamination.…”

Section: Discussionsupporting

confidence: 90%

Novel acsF Gene Primers Revealed a Diverse Phototrophic Bacterial Population, Including Gemmatimonadetes, in Lake Taihu (China)

Huang

Zeng

et al. 2016

Appl Environ Microbiol

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Anoxygenic phototrophs represent an environmentally important and phylogenetically diverse group of organisms. They harvest light using bacteriochlorophyll-containing reaction centers. Recently, a novel phototrophic bacterium, Gemmatimonas phototrophica, belonging to a rarely studied phylum, Gemmatimonadetes, was isolated from a freshwater lake in the Gobi Desert. To obtain more information about the environmental distribution of phototrophic Gemmatimonadetes, we collected microbial samples from the water column, upper sediment, and deeper anoxic sediment of Lake Taihu, China. MiSeq sequencing of the 16S rRNA, pufM, and bchY genes was carried out to assess the diversity of local phototrophic communities. In addition, we designed new degenerate primers of aerobic cyclase gene acsF, which serves as a convenient marker for both phototrophic Gemmatimonadetes and phototrophic Proteobacteria. Our results showed that most of the phototrophic species in Lake Taihu belong to Alpha-and Betaproteobacteria. Sequences of green sulfur and green nonsulfur bacteria (phototrophic Chlorobi and Chloroflexi, respectively) were found in the sediment. Using the newly designed primers, we identified a diverse community of phototrophic Gemmatimonadetes forming 30 operational taxonomic units. These species represented 10.5 and 17.3% of the acsF reads in the upper semiaerobic sediment and anoxic sediment, whereas their abundance in the water column was <1%. IMPORTANCEPhotosynthesis is one of the most fundamental biological processes on Earth. Recently, the presence of photosynthetic reaction centers has been reported from a rarely studied bacterial phylum, Gemmatimonadetes, but almost nothing is known about the diversity and environmental distribution of these organisms. The newly designed acsF primers were used to identify phototrophic Gemmatimonadetes from planktonic and sediment samples collected in Lake Taihu, China. The Gemmatimonadetes sequences were found mostly in the upper sediments, documenting the preference of Gemmatimonadetes for semiaerobic conditions. Our results also show that the phototrophic Gemmatimonadetes present in Lake Taihu were relatively diverse, encompassing 30 operational taxonomic units.

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“…Previous studies indicated that Epsilonproteobacteria was abundant in the animals' digestive tracts and near undersea hydrothermal vents, and that it exhibited good resistance to toxicity [59,60] and the ability to degrade some toxic substances [61]. However, Epsilonproteobacteria has rarely been detected in the sediments in the Taihu Basin [62]. Previous studies indicated that Deltaproteobacteria was ubiquitous in the environment, and closely related to the sulfur cycle between the water and sediment [63].…”

Section: Discussionmentioning

confidence: 99%

Effect of Sewage and Industrial Effluents on Bacterial and Archaeal Communities of Creek Sediments in the Taihu Basin

Xia

Wang

et al. 2017

Water

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Different characteristics of wastewater have different effects on the diversity and abundance of bacteria and archaea in rivers. There are many creeks around Taihu Lake, and they receive a large volume of industrial wastewater and domestic sewage, which is discharged into these creeks, and finally into Taihu Lake. The present study determined Illumina reads (16S rRNA gene amplicons) to analyze the effects of industrial wastewater and domestic sewage on the bacterial and archaeal communities at the different sampling sites along two creeks. The bacterial and archaeal diversity of the creek receiving sewage was higher than that of the creek receiving industrial waste. Proteobacteria dominated the microbial communities of all samples in both creeks. Betaproteobacteria dominated in the sewage creek, and its abundance declined along the creek. Certain pollutant-resistant classes were more abundant at the site near to the pollution source of the industry creek (e.g., Epsilonproteobacteria and Flavobacteria). Halobacteria belonging to the phylum Euryarchaeota was the dominant archaea at all sites in both creeks, while Methanobacteria was more abundant in the industry creek. The bacterial community was more affected by the distance between the sampling site and the pollutant source than the archaeal community, indicating that bacterial diversity and abundance could be a good index to distinguish domestic and industrial pollution, especially when the main pollution sources are difficult to identify.

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Sediment prokaryote communities in different sites of eutrophic Lake Taihu and their interactions with environmental factors

Cited by 44 publications

References 72 publications

Microbial community composition in alpine lake sediments from the Hengduan Mountains

Microbial community composition in alpine lake sediments from the Hengduan Mountains

Novel acsF Gene Primers Revealed a Diverse Phototrophic Bacterial Population, Including Gemmatimonadetes, in Lake Taihu (China)

Effect of Sewage and Industrial Effluents on Bacterial and Archaeal Communities of Creek Sediments in the Taihu Basin

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